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* [Bug breakpoints/14588] New: Option-g-O0 bug
@ 2012-09-16  6:43 jiang30056284 at sina dot com
  2012-09-16  6:47 ` [Bug breakpoints/14588] " jiang30056284 at sina dot com
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: jiang30056284 at sina dot com @ 2012-09-16  6:43 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14588

             Bug #: 14588
           Summary: Option-g-O0 bug
           Product: gdb
           Version: 7.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jiang30056284@sina.com
    Classification: Unclassified


//123.c
char macro_ptr=0;
void next(void)
{
redo:
    if (!macro_ptr)
    {    
        if (macro_ptr)
        {
            if (macro_ptr)
            {
                if (macro_ptr)
                {
                    goto redo;
                }
            }
        }
    }
    else
    {    
        goto redo;        
    }
}

int main()
{
    char a=0,b=9;
    next();
    b=a+b;
    return 0;
}

jiang@jiang:~$ gcc -o123 -g -O0 123.c
jiang@jiang:~$ gdb 123
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/jiang/123...done.
(gdb) break main 
Breakpoint 1 at 0x4004f4: file 123.c, line 28.
(gdb) run
Starting program: /home/jiang/123 

Breakpoint 1, main () at 123.c:28
28        char a=0,b=9;
(gdb) s
29        next();
(gdb) 
[Inferior 1 (process 2322) exited normally]
warning: Error removing breakpoint 0
warning: Error removing breakpoint 0
warning: Error removing breakpoint 0
(gdb)

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^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-09-17  5:32 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-09-16  6:43 [Bug breakpoints/14588] New: Option-g-O0 bug jiang30056284 at sina dot com
2012-09-16  6:47 ` [Bug breakpoints/14588] " jiang30056284 at sina dot com
2012-09-16  7:11 ` jan.kratochvil at redhat dot com
2012-09-16  9:19 ` jiang30056284 at sina dot com
2012-09-17  4:32 ` jiang30056284 at sina dot com
2012-09-17  5:32 ` jan.kratochvil at redhat dot com

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